Answer:
[tex]832\ ft^2[/tex]
Step-by-step explanation:
Area Of A Parallelepiped
The area of a parallelepiped of dimensions l,h,w is
[tex]A=2(lw+hw+lh)[/tex]
The dimensions provided are enough to know the surface area of the container in square feet.
w=4 feet, h=14 feet, l=20 feet.
The area is then,
[tex]A=2[(20)(4)+(14)(4)+(20)(14)]=2*416=832\ ft^2[/tex]
Sofia is going to need [tex]832\ ft^2[/tex] of material to wrap the box